| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a negative blue-violet laser photosensitive composition that is highly sensitive to laser beams of blue-violet region, excels in not only safe light properties under a yellow light but also the resolution and rectangularity of obtained image, and is suitable for use in direct lithography, and to provide an image forming material, an image former and a method of image formation using the same. <P>SOLUTION: In the negative blue-violet laser photosensitive composition, the minimum exposure intensity at which the exposure by blue-violet laser beams causes the residual film ratio to be ≥90% is ≤40 mJ/cm<SP>2</SP>, and with respect to a residual film ratio-exposure intensity curve obtained by plotting the residual film ratio at exposed part [t(%)] against the logarithm of exposure intensity by blue-violet laser beams [logE (mJ/cm<SP>2</SP>)], the γ value of straight line binding point at a residual film ratio of 15% with point at a residual film ratio of 80%, t=γlogE+δ, is ≥4.0×10<SP>2</SP>. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
